Is there a tool which does this for PostgreSQL? Take a "snapshot" of what the server is doing about 10 times per second. Write this to a file. After N hours you can aggregate the file. What does the server do most of the time? Which tables/index gets used the most. Before optimizing a database, I would like to know what is going on in the production system. I know that there are internal tables like pg_stat_statements. But I guess doing a snapshot every N millseconds will present a better picture of what is going in in real life. Is there already a tool which goes this way? Or is there a better way? Regards, Thomas Güttler -- Thomas Guettler http://www.thomas-guettler.de/ I am looking for feedback: https://github.com/guettli/programming-guidelines
